Patents by Inventor Hisakazu Kishimoto

Hisakazu Kishimoto has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Tricyclic indole-2-carboxylic acid compound used as NMDA receptor antagonist
    Patent number: 6495587
    Abstract: The present invention provides novel tricyclic indole-2-carboxylic acids of the following chemical formula, which have potent NMDA receptor antagonistic activity.
    Type: Grant
    Filed: August 29, 2001
    Date of Patent: December 17, 2002
    Assignee: Sumitomo Pharmaceuticals Company, Limited
    Inventors: Nobuyuki Ae, Seiji Katayama, Hisakazu Kishimoto, Ryu Nagata
  • 2,3-diaminopropionic acid derivative
    Patent number: 6048854
    Abstract: The present invention relates to a 2,3-diaminopropionic acid derivative of the formula (1): ##STR1## or a pharmaceutically acceptable salt thereof. The compounds of the present invention are useful as a platelet aggregation inhibitor, a cancer metastasis inhibitor, a wound healing agent or a bone resorption inhibitor.
    Type: Grant
    Filed: September 25, 1997
    Date of Patent: April 11, 2000
    Assignee: Sumitomo Pharmaceuticals Company, Limited
    Inventors: Yoshiharu Ikeda, Yasuyuki Ueki, Hisakazu Kishimoto, Toshio Nishihara, Yumiko Kamikawa
  • 2,3-diaminopropionic acid derivative
    Patent number: 5707994
    Abstract: The present invention relates to a 2,3-diaminopropionic acid derivative of the formula (1): ##STR1## or a pharmaceutically acceptable salt thereof. The compounds of the present invention are useful as a platelet aggregation inhibitor, a cancer metastasis inhibitor, a wound healing agent or a bone resorption inhibitor.
    Type: Grant
    Filed: April 19, 1996
    Date of Patent: January 13, 1998
    Assignee: Sumitomo Pharmaceuticals Company, Limited
    Inventors: Yoshihara Ikeda, Yasuyuki Ueki, Hisakazu Kishimoto, Toshio Nishihara, Yumiko Kamikawa